/* See notes in this header.  */
#include "taint-CVE-2020-13143.h"

struct configfs_attribute {
	/* [...snip...] */
	ssize_t (*store)(struct config_item *, const char *, size_t) /* { dg-message "\\(1\\) field 'store' of 'struct configfs_attribute' is marked with '__attribute__\\(\\(tainted_args\\)\\)'" } */
		__attribute__((tainted_args)); /* (this is added).  */
};
static inline struct gadget_info *to_gadget_info(struct config_item *item)
{
	 return container_of(to_config_group(item), struct gadget_info, group);
}

static ssize_t gadget_dev_desc_UDC_store(struct config_item *item,
		const char *page, size_t len)
{
	struct gadget_info *gi = to_gadget_info(item);
	char *name;
	int ret;

#if 0
	/* FIXME: this is the fix.  */
	if (strlen(page) < len)
		return -EOVERFLOW;
#endif

	name = kstrdup(page, GFP_KERNEL);
	if (!name)
		return -ENOMEM;
	if (name[len - 1] == '\n') /* { dg-warning "use of attacker-controlled value 'len \[^\n\r\]+' as offset without upper-bounds checking" } */
		name[len - 1] = '\0'; /* { dg-warning "use of attacker-controlled value 'len \[^\n\r\]+' as offset without upper-bounds checking" } */
	/* [...snip...] */				\
}

CONFIGFS_ATTR(gadget_dev_desc_, UDC); /* { dg-message "\\(2\\) function 'gadget_dev_desc_UDC_store' used as initializer for field 'store' marked with '__attribute__\\(\\(tainted_args\\)\\)'" } */
